Improvement in button locks and fasteners



M. M. SHUR.

BUTTON LOCK AND FASTENER. No. 185,976, Patented .Tan.2, 1877.

, WITNESSES; INVENTOR, 4 4 Wm 7%, $2M.

NPEIERS. PNOTO-UTHOGRAPHER, WASHINGYON. D Cv W a ATTORNEYS,

UNITED STATES PATENT OFFICE.

MILTON M. SHUR, OF DENVER, COLORADO.

Specification forming part of Letters Patent No. 185,976,

dated January 2, 1877; application tiled October 27, 1876.

To all whom it may concern:

Be it known that I, MILTON M. SHUR, of Denver, in the county of Arapahoe and State of Colorado, have invented a new and valuable Improvement in Button-Fasteners; and I do hereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of the under plate of my button-fastener, and Fig. 2 is a representation of thetop plate thereof. Fig.3 is a bottom view, showing the two plates locked; and Fig. 4 is a bottom view, showing the same open. Fig. 5 is a front elevation of-my button'fastener complete,'and Fig. 6 is a front view of the button as de tached.

The object of my invention is to secure a safe and adjustable fastening for removable button-studs or ear-drops. This object is accomplished by the use of two perforated eccentrically-pivoted locking plates or disks, hereinafter described.

A designates a button, and A a shank, made solid therewith, and provided at its end with a knob or enlargement, to. B and 0, respectively, designate locking plates or disks, which are eccentrically pivoted to one another by means of a pivot-pin, b. Each one of these plates is provided, near its center, with a slot or perforation, consisting of a larger part,'c, and a smaller part, c.

In turning said plates on said pivot, the said slots or perforations pass over one another. When turned toward one another, the

larger parts 0 c of said perforations form an opening of sufficient size to allow the passage of knob or enlargement a. By turning said plates away from one another, the smaller parts 0 c of said perforations are brought opposite to each other, reducing the size of the opening through said plates, so as to prevent enlargement a from passing through the same,

thereby attaching shank A and button A to said plates B and U. The rotary movement of said disks or plates over one another is guided and limited by means of a stud or pin, d, on plate B, which pin works in a curved eccentric slot, d, in plate or disk 0. Said pin and slot may be transposed on said plates. Each one of said disks is provided with a shoulder, E, on its periphery, so as to facilitate turning the said plates upon their pivots away from one another, these shoulders being by the operators thumbs. Plate B is also provided with a projection, e, which engages with a recess or perforation, e, in plate 0, when said plates are turned toward each other. The said pin or projection e and recess or perforation 0 operate to fasten said buttons, but they are easily separated. Said pin and recess may be transpmed.

What I claim as new, and desire to secure by Letters Patent, is-

The plates B and O, eccentrically pivoted by means of pin b, and said plates having elongated slots 0 c, stud d, and eccentric slot 01, substantially as and for the purpose set forth.

MILTON M. SHUR. Witnesses H. Y. ANDERSON, B. O. ADAMS- 

